Metal weather-strip.



UNITED STATES PATENT oE-EICE.

ALFRED M. LANE, F ST. LOUIS, MISSOURI. l

METAL wEATHERfsTBIP.

Specification of Letters Patent. i

Patenten Mar. 2c, 191e.'y

4Application led August 25, 1911. Serial No. 646,021.

` i To all lwhom' t may concern:

Be it known that VI. ALFRED M. LANE,h a lcitizen of the United States, and a resident of the city of St. Louis and State ot Mis- 5 souri, have invented a new and useful lm 'provenient in Metal vlVeather Strips, of which'the following is a specification.

The invention relates to weather strips and more particularly) to `those made of l metal and applied to wooden frames and sashes.

It has for its principal objects to prevent binding and insure an easy movement of the'v sash when it swells and shrinks, due to 16 climatic changes; and to attain certain other advantages hereinafter..more fully appearmg.

The invention consists in the novelconstruction, arrangement and application of A2Q a flexible or resilient strip in ,conjunction with a coperatinp relatively rigid strip, and in the parts and arrangements and combinations ofparts hereinafter described and claimed.`

Inthe accompanying drawingr which formspart oithisspeeiieation and wherein flike symbols refer to like parts wherever they occlir, Figure 1 is a fragmentary horizontal section through one side ofa window casing, the line ofsection being taken just above the lower sash and through the lower portion of the upper sash, to show a practical adaptation of in v invention; Fig. 2 is a fragmentary perspective view. on, an enlarged scale, showingr a practical form of `resilient strip; Fig. 3 isa similar view showing the cooperating rigid stripgand Fig. 4 is an end view of the two strip members joined.-

In the drawings, a portion of an ordinary window frame 1 is shown as arranged for upper and lower sliding sashes. The inner vertical corner of thenupper sash 2 is rabbeted as at 3 to make room for the coperating beaded portions of the weather strip members hereinafter described; and the lower sash 4 is likewise rabbeted as at 5.

On each of the sashes is mounted a relatively rigid metal strip 6 which is fastened Vby brads or tacks 7. The strip 6 has a rolled or beaded portion 8 to provide an undercut groove at its tree marginal portion in which an undercut bead or rib 9 on the free marginal portion of a relatively resilient strip 10 slides.

The resilient strips 10 are preferably ap' plied by inserting' their fiat base portions in the groove of the frame l which receives the parting strip 1l. Preferably, one of the weather strip members is inserted before the parting strip and it is secured by bra-ds or tacks 1'2 to the side wall of the groove.

' Thenthc parting' strip is placed in posit-ion and the other weather strip member is secured to the parting strip by brads or tacks 13 close to the tace ot the frame 1.

` ."Ihe strip l() which is preferably made of bronze or some other suitable resilient metal is providtd with a relient portion 14 which extends longitudimxlly adjacent. tothe rib 9. This rebent portion ispreferably sub stantially U-.shape in cross section and the portion oi the strip at the base ofthe rib 9 and thc side ot the relient portion 'adjacent thereto is otiset some distance `from the base portion which lies on the opposite Side of the retient portion 14. This is to permitthe projectingi portion ot the strip 10 to have 14 of the resilient strips l() will yield tot allow the interloeked ribbed and ,qrooved portions of the two cooperating strips to move toward the frame without changing their form. lt will also yield should the sash shrink so as to pull thenterlockcd beads away from the frame. The binding;r of the cooperating strips and 'the tendency to spread th'e mouth of the groove bead is ythereby obviated.

Obviously, the device admits of considerable modification Without departing from my invention. Therefore, I do not wish to be limited tothe specific construction and arrangement shown.

lVhat I claim is: i

1'. t weather strip comprising two metal strips. the one secured to the window frame and the other to the window sash. one of said strips being relatively rigid and having a longitudinally grooved portion andthe otherstrip'having a longitudinally ribbed portion fitted in the grooved portion"o-the other strip so a's to slide lengthwise therein but interlocked against lateral inoveirient with respect thereto. said Second inentioned strip having' a flexible rebent portion throughout: its length adjoining the .ribbed portion whereby the eot'iperating ribhed and grooved portions of the two strips are permitted joint lateral movement independent of the base portion ot said strip provided with the tlexilile'i'elieiit portion.

A. weather Strip.comprising two metal strips, the one seeured -to the window traine and the other to the window .'sash. one off said strips being relatively rigid and having an uiidereut groove *extending lengthwise t-liereot' and the other si rip lit-ing relatively flexible and haring an undereul ril extending lengthwise tlu-reoi' and .slidalily tilted in saidlindert-ut groove in the other strip. said llexilile strip having a relient portion extending lengthwise tliereo't adjacent to the rib.

'l. A weather strip comprising a relatively flexible metal strip having a llat hase portion adapted to lie fastened througliontits length and an intermediate retient. portion extending lengthwise ot' said strip, the sides of said relient portion 'being spaced apart.

.said strip haring an outwardly7 o'i'set tree marginal portion :it the side olz said rebeiit portion opposite to the base portion. said free. marginal portion having an outwardly projecting underent rib extending leiigthwise thereof. and :i set-ond metal strip which is relatively rigid and adapted to be seeured throughoutl itsy length near one margin. the opposite marginal portion ot said strip having an oi'itwardly projecting undercut giooved portion extending lengthwise thereot` and slidaliltv fitted over the rib on said tirst n'ieiitioned strip.

4. .t weather strip eonii'nising a relatively flexible metal strip having a -lat base portion adapted to be fastened throughout. its length and an intermediate relient portion extending lengthwise of .@aid strip. the sides ot said relient portion being spaced apart,'said strip having a free niai'ginal'portion at the side of said -rebeiit portion opposite to the base portion, said tree I iiargiiial portion having an outwardly projecting rib extending lengthwise thereof and being offset outwardly with' respect tosaid base portion., and ii second metal strip which is relatively' rigid and' adapted to be secured throughout its length near one margin, the opposite marginal portion of said strip being offset outwardly and having a groove extending lengthwise thereof and slidably littedover the rib on said first mentioned strip.

5. A weather strip comprising two coperatiiig metal strips,` the one secured at its liiiargiii tothe window sashv and the other likewise to the window traine, one ofsaid strips being resilient 'and the other relatively rigid, the cooperating free marginal portions ot the two strips being slidably con'- neeted toA move longitudinally with respect loeked against separatiointhe intermediate portier 'ot said resilient strip being free and relient longitudinally throughout its length so that the engaged portions of the two strips are permitted joint lateral movement intery independent of the base portion of said i'e- -I silieiit strip.

t3. A weather strip comprising two inetal strips. the oneseeured, at its margin to the window frame andthe other likewise to the window sash, said strips having, respectively. a rib and a groove at their free inargins slidably fitted the one within the other so as to move longitudinally but being other? wise intei'loelted against separation,'one of said strips being resilient and having an expansible and conti'aetible free intel-Inediate portion whereby-.the cooperating ribbed and grooved portions of the strips are perniitted joint lateral movement independeifitf4 of the vfastened poi-tion of said resilient Strip. Signed atSt. Louis, Mo., this 18th day of 

